单词：Osagean
音标：[әu'sædʒi:n] ；
[地质]欧塞季群
单词：Osagean 相关文章
STEVE INSKEEP, HOST: Generations ago, the Osage Indian Nation was forced to move. Not for the first time, white settlers pushed them off their land in the 1800s. The writer David Grann sees in that move the start of an astonishing and tragic story. D
发表于:2019-01-17 / 阅读(394) / 评论(0)
2017年NPR美国国家公共电台4月
2017年NPR美国国家公共电台4月
The store of pollen paints a picture of the plains of 13,000 years ago, a picture that looks very different from the open prairie grassland of today. But why did this region look so different back then? The ice sheets to the north, although retreatin
发表于:2019-01-23 / 阅读(506) / 评论(0)
探索与发现2012年
探索与发现2012年